Yes they are doing a great job, as ever - but the Herc is too small, and too old (even the J). And the C-17 is too expensive, and even then not as capable in some significant areas as the A-400M will be.
And before anyone jumps down my throat with the fact that the A-400 has all sorts of ongoing development problems, could you stop and ask yourself what modern aircraft in development doesn't? I mean, it's not as if the the A-380, or the 787, or even Dave, is humming sweetly along towards a rosy service life with no drawbacks, is it?
airsound